What is the purpose of boron in nuclear reactors?
A) Boron absorbs neutrons to control the reaction.
B) Boron is the fissionable fuel.
C) Boron is the source of neutrons.
D) none of the above
A
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Discuss the development of the various groups of small mammals during the Cenozoic. What will be an ideal response?
Rudist bivalves were an important component of the Mesozoic reef community. Indicate whether the statement is true or false
What is the primary origin of most neritic sediments?
a. calcareous b. terrigenous c. hydrogenous d. cosmogenous
Structures given a LEED platinum ranking are ________
A) exemplary in sustainable design, especially energy efficiency B) inefficient and need to be renovated C) constructed to function without electricity D) typically built in sustainable villages in developing countries E) especially high in heavy metal content